ci.yml

name: ci

on:
  pull_request:
  push:

env:
  CARGO_TERM_COLOR: always

jobs:
  test:
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        rust: ["stable", "nightly"]
        no_std: [true, false]
        debug: [true, false]
        unsafe_impl: [true, false]
        ptr_metadata: [true, false]
        error_in_core: [true, false]
        allocator_api: [true, false]
        exclude:
          - rust: stable
            ptr_metadata: true
          - rust: stable
            error_in_core: true
          - rust: stable
            allocator_api: true
          # no point in testing nightly with unstable features disabled
          - rust: nightly
            ptr_metadata: false
          - rust: nightly
            error_in_core: false
          - rust: nightly
            allocator_api: false
    runs-on: ${{ matrix.os }}
    name: |
      test - ${{ matrix.os }}; ${{ matrix.rust }} rust; features: {
        no_std: ${{ matrix.no_std }},
        debug: ${{ matrix.debug }},
        unsafe_impl: ${{ matrix.unsafe_impl }},
        ptr_metadata: ${{ matrix.ptr_metadata }},
        error_in_core: ${{ matrix.error_in_core }},
        allocator_api: ${{ matrix.allocator_api }}
      }
    env:
      RUST_BACKTRACE: 1 # Emit backtraces on panics.
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: ${{ matrix.rust }}
          profile: minimal
          override: true
      - if: matrix.no_std == true
        run: echo "FEATURES=$FEATURES,no_std" >> $GITHUB_ENV
      - if: matrix.debug == true
        run: echo "FEATURES=$FEATURES,debug" >> $GITHUB_ENV
      - if: matrix.unsafe_impl == true
        run: echo "FEATURES=$FEATURES,unsafe_impl" >> $GITHUB_ENV
      - if: matrix.ptr_metadata == true
        run: echo "FEATURES=$FEATURES,ptr_metadata" >> $GITHUB_ENV
      - if: matrix.error_in_core == true
        run: echo "FEATURES=$FEATURES,error_in_core" >> $GITHUB_ENV
      - if: matrix.allocator_api == true
        run: echo "FEATURES=$FEATURES,allocator_api" >> $GITHUB_ENV
      - run: cargo test --no-default-features --features=${{ env.FEATURES }} --verbose

  lint:
    runs-on: ubuntu-latest
    needs: test
    steps:
      - uses: actions/checkout@v3
      - uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          profile: minimal
          components: clippy
          override: true
      - run: cargo clippy --all-features -- -D warnings # Deny clippy warnings

  miri:
    runs-on: ubuntu-latest
    needs: test
    steps:
      - uses: actions/checkout@v3
      - name: Install Miri
        uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly
          profile: minimal
          components: miri
          override: true
      - run: cargo miri setup
      - run: cargo miri test --all-features --verbose